单选题
Theories have features that are A
indicative
of their truth, and the task of justification is to identify these features and B
using
them to guide choices C
as to
D
which theories
to believe.
A
B
C
D
【正确答案】
B
【答案解析】
解析：using一use。句意：理论都有自圆其说的特点，而证明的任务就是找出这些特点，并利用它们来指导人们选择该相信哪些理论。第二个and连接的identify和use属于并列结构，接在不定式符号to后面，应用动词原形，所以using应改为use。
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